A full estimate will always be provided ahead of accepting an instruction, but this page provides an overview of the pricing structure overview.
Energy Performance Certificate for an existing home
| Service | Prices from January 2026 |
|---|---|
| Energy Performance Certificate (existing homes) | |
| 1 bedroom | £70 |
| 2 bedroom | £75 |
| 3 bedroom | £80 |
| 4 bedroom | £90 |
| 5 bedroom | £100 |
| Each additional bedroom | +£10 |
| Vehicle mileage outside of PL1 – PL10 and PL18 – PL21 | 50p per mile |
SAP calculation and Part L compliance for a new build home or conversion
| Service | Prices from January 2026 |
|---|---|
| Planning stage SAP calculation | £160 |
| As-designed SAP calculation | £30 per hour for any changes between planning and design stage |
| As-built SAP calculation | £30 per hour for any changes between design and as-built stage |
| Energy Performance Certificate | £60 to £100 |
| U-value calculation | From £30 |
| Climate Emergency Compliance form | From £30 |
Please note that these costs represent a typical home and can increase for particularly complex projects. An estimate will always be provided so that you so that you know the full costs of compliance before work begins.
Commercial EPCs
Commercial EPCs are available from April 2026 onwards.
| Service | Prices from April 2026 |
|---|---|
| Level 3 EPC (for existing buildings) | Project-specific pricing |
| Level 4 EPC (for new buildings and more complex existing buildings) | Project-specific pricing |
Specialist energy modelling
Energy modelling is a more bespoke service and depends on your exact requirements. Please book a call to discuss your needs and get an accurate estimate.
| Service | Prices from January 2026 |
|---|---|
| Passivhaus Planning Package | Project-specific pricing |
| Dynamic Thermal Modelling | Project-specific pricing |
| Thermal bridging calculations | Project-specific pricing |
Whole life carbon assessment
| Service | Prices from January 2026 |
|---|---|
| Embodied carbon calculation | Project-specific pricing |
Data analysis
| Service | Prices from January 2026 |
|---|---|
| Data analysis services | Project-specific pricing |
Travel
| Service | Prices from July 2025 |
|---|---|
| Vehicle mileage | 50p per mile |
Payment terms
To keep things clear and simple, payment terms are as follows:
- For all services, payment is due within 7 days of the invoice date.
- The invoice is issued upon completion of the work stage.
If you have any questions regarding your invoice, please don’t hesitate to get in touch.
Not sure where to start?
Let’s find out your exact needs over a phone or video call.